<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="../react18/react.development.js"></script>
  <script src="../react18/react-dom.development.js"></script>
  <script src="../react18/babel.min.js"></script>
  <style>
    .active{
      font-size: 35px;
      font-family: 'kaiti';
    }
  </style>
</head>

<body>
  <div id="app"> </div>
  <script type="text/babel">
    /* 
      jsx语法1:
        - 虚拟DOM中要混入js表达式，要用{},{}中只能写变量或者表达式,不能书写语句(表达式有返回值,语句没有返回值)

    
    */
    const title = 'ddd'
    const hot = false
    const active = true
    const vi = (
      <div>
        <h1>{title}</h1>
        <p className={active?'active':''}>须知少日拏云志,曾许人间{hot?'':'第一流'}</p>
      </div>
    )
    ReactDOM.createRoot(document.getElementById('app')).render(vi)
    // const vi = (
    //   <div>
    //     <h1>{title}</h1>
    //     <p className={active?'active':''}>须知少日拏云志,曾许人间{hot?'':'第一流'}</p>
    //   </div>
    // )
    // ReactDOM.createRoot(document.getElementById('app')).render(vi)
    // const vd = (
    //   <div>
    //     <h1>{title}</h1>
    //     <p>jsx语法1</p>
    //     <p className={active?'active':''}>今天的天气真{hot?'热啊':'冷啊'}</p>
    //   </div>
    // )
    // ReactDOM.createRoot(document.getElementById('app')).render(vd)
    // const title = "JSX"
    // const hot = false;
    // const isActive = true;
    // const vDOM = (
    //   <div className="outer">
    //     <h1>{title}</h1>
    //     <p>JSX贼方便</p>
    //     <p className={isActive?"active":""} >今天的天气真{hot?"热啊":"冷啊"}</p>
    //   </div>
    // );


    
    //创建容器并渲染虚拟DOM
    // ReactDOM.createRoot(document.getElementById('app')).render(vDOM)
  </script>
</body>

</html>